Netflix movies played ok on iPhone 3-G before iCloud, now has problems streaming.

[sissi]

I have iPhone4. I've searched all over the net trying to find help with my Netflix streaming
problems.. Before I installed the new software iOS5 and iCloud I had no problems and had watched several movies.
I do not have wifi. I sometimes go to McDonalds with my laptop when I need to sync with iTunes. I have tried resetting iPhone and rebooting, neither helped. I have also deleted and reinstalled Netflix . That didn't helped either. Any advice sincerely appreciated.